Protests at the use of animals in research have taken a new and fearful character in Britain with the attempted murder of two British scientists by the terrorist technique of the pre-planted car-bomb.
The research community will rightly be alarmed at these developments, which have two objectives: to arouse public attention and to frighten people working in research with animals. The first need is that everything should be done to identify those responsible for the crimes and to put them on trail. The Defence Research Society has taken the practical step of offering a reward of 10,000 pounds for information leading to those responsible, but past experience is not encouraging. People are unlikely to be tempted by such offers. The professional police will similarly be confronted by the usual problem of finding a needle in a haystack.
That is why the intellectual (知识分子) community in Britain and elsewhere must act more vigorously in its own defence. There are several steps that can be taken, of which the chief one is to demand of all the organizations that exist with the declared objectives of safeguarding the interests of animals that they should declare clearly where they stand on violence towards people. And it will not be enough for the chairmen and chairwomen of these organizations to utter placatory (安抚的) statements on behalf of all their members. These people should also undertake that it will be a test of continuing membership in their organizations that members and would be members should declare that they will take no part in acts of violence against human beings. Even such undertakings would not be fully effective: people, after all, can lie. But at least they would distinguish the organizations entitled to a continuing voice in the dialogue with the research community about the rights of animals in research from the organizations that deserve no say.

21. The words “these developments” (Para. 2, Line 1) most probably refer to ________.
A) the acts of violence against scientists
B) the use of animals in research
C) the techniques of planting bombs in cars
D) the establishment of new animal protection organization
22. Which of the following is TRUE according to the passage?
A) The police abandoned their efforts to find the criminals.
B) The terrorists escaped with the help of their organizations.
C) The attempted murder caused grave anxiety among British scientists.
D) People sympathized murder caused grave anxiety among British scientists.
23. The author’s purpose in writing his article is to demand that animal-protecting organizations ________.
A) declare their objectives clearly
B) give up the use of violence
C) continue the dialogue with the scientific community
D) help to find those responsible for the attempted murder
24. In the author’s opinion ________.
A) since people can lie, the problem about their rights of scientists can’t be solved
B) animal-protecting organizations about be held responsible for acts of violence against scientists
C) animal protection organizations should be declared illegal
D) the scientists should take effective measures to protect themselves
25. What does the word “they” (Para. 3, Line 3) refer to?
A) The animal-protecting organizations.
B) The organizations that will talk with the research community.
C) Those who support the use of animals in research.
D) Those who support the animal-protection organizations.

Questions 26 to 30 are based on the following passage.

The earlier type of suburb, which was most dependent on the railroad, had a special advantage that could be fully appreciated only after it had disappeared. These suburbs, spread out along a railroad line, were discontinuous and properly spaced; and without the aid of legislation (法规) they were limited in population as well as area; for the biggest rarely held as many as ten thousand people, and under five thousand was more usual. In 1950, for example, Bronxville, New York, a typical upper-class suburb, had 6,778 people, while Riverside, Illinois, founded as early as 1869, had only 9.153.
The size and scale of the suburb, that of neighborhood unit, was not entirely the result of its open planning, which favored low densities. Being served by a railroad line, with station stops from three to five miles apart, there was a natural limit to the spread of any particular community. House had to be sited “within easy walking distance of the railroad station,” as some old residents would point out; and only those wealthy enough to afford a horse and a carriage dared to penetrate farther into the open country.
Through its spaced station stops, the railroad suburb was at first kept from spreading or excessively increasing in numbers, for a natural greenbelt, often still under cultivation as park, gardens, remained between the suburbs and increased the available recreation area. Occasionally, in a few happy areas like Westchester, between 1915 and 1935 a parkway, like the Bronx River parkway, accompanied by continuous strip of park for pedestrian (散步的人) use, not yet overrun by a constant stream of urban traffic, added to the perfection of the whole suburban pattern. Whatever one might say of the social disadvantages this was in many ways a perfect physical environment. But it lasted less than a generation.

26. What was the special advantage of the old type of suburb?
A) Its nearness to the railroad.
B) The vastness of its open space.
C) Its small size in area and population.
D) The high social status of its residents.
27. The size of the old suburb was limited because ________.
A) people wanted to live near a railroad station
B) it was originally planned by railroad companies
C) there was a law governing the size of the suburb
D) local inhabitants didn’t like to out in the country
28. “Happy areas” (Para. 3, Line 3) were areas where ________.
A) life was enjoyed by everyone
B) more roads were built to bypass the heavy traffic
C) a greenbelt was available solely for recreation
D) people could have lots of fun
29. It is evident that the writer ________.
A) finds urban life uncomfortable
B) prefers life in the countryside
C) feels disappointed in the changes of suburbs
D) advocates the idea of returning to nature
30. The topic discussed in the passage is “________”.
A) the size and scale of suburban neighborhood units
B) the advantage of old-type suburbs
C) the location of railroad stations
D) the concept of the suburban pattern

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